Foreign exchange gains and losses

Foreign exchange gains and losses are a routine part of doing business in the UAE, where companies regularly transact in US Dollars, Euros, British Pounds, and other currencies while maintaining their books in AED. Yet many finance teams still struggle to reconcile how these gains and losses are recorded under accounting standards versus how they are actually treated for UAE Corporate Tax purposes. The two frameworks look similar on the surface but diverge in important ways, and getting this wrong can lead to incorrect taxable income calculations, missed elections, or disputes with the Federal Tax Authority (FTA). This article breaks down both treatments in detail, with a specific focus on UAE Corporate Tax Law as it applies in 2026.

Understanding Foreign Exchange Gains and Losses

A foreign exchange gain or loss arises when a transaction denominated in a currency other than a company’s functional currency is settled, or when a monetary balance is revalued, at an exchange rate that differs from the rate used when the transaction was first recorded. For most UAE businesses, the functional currency is the UAE Dirham, since the Dirham has been pegged to the US Dollar at a fixed rate for decades, which actually simplifies a large share of day-to-day foreign currency exposure. However, businesses that import goods, service international clients, borrow in foreign currency, or hold foreign bank accounts will still experience exchange rate movements against currencies like the Euro, GBP, INR, or Japanese Yen, and these movements create real accounting and tax consequences.

Exchange differences generally fall into two broad categories. Realized differences occur when a transaction is actually settled, for example when an invoice raised in Euros is paid and converted into Dirhams at a different rate than the one used at invoice date. Unrealized differences occur when outstanding balances, such as foreign currency receivables, payables, or loans, are simply retranslated at period-end using the closing exchange rate, even though no cash has changed hands. This distinction between realized and unrealized movements becomes central when comparing accounting treatment with tax treatment, because the two frameworks do not always agree on when a gain or loss should count.

Accounting Treatment of Foreign Exchange Gains and Losses in the UAE

UAE companies are generally required to prepare financial statements in accordance with International Financial Reporting Standards (IFRS), and the relevant standard governing foreign currency matters is IAS 21, The Effects of Changes in Foreign Exchange Rates. Under IAS 21, a company first determines its functional currency, which is the currency of the primary economic environment in which it operates. Transactions in any other currency are initially recorded at the spot exchange rate on the transaction date.

Monetary Items vs Non-Monetary Items

IAS 21 draws a critical distinction between monetary and non-monetary items, and this distinction drives the entire accounting treatment. Monetary items, such as cash, trade receivables, trade payables, and loans, represent a right to receive or an obligation to pay a fixed or determinable amount of currency. These items must be retranslated at the closing rate at the end of every reporting period, and any resulting exchange difference is recognized immediately in the profit and loss statement for the period in which it arises. Non-monetary items, on the other hand, such as property, plant, equipment, or inventory carried at historical cost, are not retranslated at each period-end; they continue to be measured using the exchange rate at the date of the original transaction.

This means that under accounting rules, a company can report a significant unrealized foreign exchange gain or loss in its financial statements simply because an outstanding foreign currency loan or receivable has moved with the market, even though no actual cash settlement has occurred. This mark-to-market style treatment gives a true and fair view of a company’s financial position at each reporting date, which is the entire purpose of financial accounting, but it does not necessarily reflect the taxable economic reality that tax authorities are willing to recognize immediately.

Tax Treatment of Foreign Exchange Gains and Losses Under UAE Corporate Tax

The UAE introduced Corporate Tax through Federal Decree-Law No. 47 of 2022, effective for financial years starting on or after 1 June 2023, and the regime has continued to be refined through Ministerial Decisions and Cabinet Decisions in the years since, including further clarifications relevant for the 2026 filing cycle. Under the Corporate Tax Law, taxable income starts from the accounting net profit reported in the financial statements prepared under IFRS, and this figure is then adjusted for specific items the law treats differently. Foreign exchange gains and losses are one of the clearest areas where such adjustments may be required.

Realization Basis Election

A central feature of the UAE Corporate Tax regime is the option available to businesses to elect either the realization basis or the accrual (book) basis for recognizing certain gains and losses. Under the realization basis, a taxable person may choose to recognize gains and losses only when they are actually realized, rather than when they are merely recognized in the accounts on an unrealized, mark-to-market basis. This election is particularly relevant to assets and liabilities held on capital account, meaning long-term assets and liabilities that are not part of the ordinary trading cycle of the business.

Where the realization basis is elected for capital account items, unrealized foreign exchange gains or losses arising from the retranslation of long-term loans, investments, or similar capital balances are excluded from taxable income until the underlying asset or liability is actually disposed of or settled. This can create a timing difference between accounting profit and taxable profit, since the accounting books will already reflect the fluctuation while the tax computation defers it.

Revenue Account Items Are Generally Taxed as They Accrue

The position is different for assets and liabilities held on revenue account, broadly meaning items that arise from the ordinary operating activities of the business, such as trade receivables and trade payables denominated in foreign currency. For these items, unrealized foreign exchange gains and losses are typically included in taxable income in the period in which they arise, mirroring the accounting treatment under IAS 21, rather than being deferred until settlement. This means a business cannot simply assume that every unrealized exchange movement is tax-deferrable; the capital versus revenue classification of the underlying item is what determines whether deferral is available.

Participation Exemption and Foreign Exchange

Another important carve-out concerns the participation exemption regime under UAE Corporate Tax. Where a UAE business holds a qualifying ownership interest of at least five percent in a foreign or domestic entity, meeting the holding period and subject-to-tax conditions, gains and losses relating to that participating interest, including foreign exchange and impairment gains or losses connected to it, are generally exempt from Corporate Tax. This means foreign exchange movements tied to a qualifying shareholding are treated very differently from foreign exchange movements tied to ordinary trading balances, even though both would appear as exchange differences in the accounting records.

Interest-Related Foreign Exchange Adjustments

Businesses should also be aware that foreign exchange gains and losses accruing from interest-bearing arrangements can interact with the general interest deduction limitation rules under the Corporate Tax Law. Where a loan is denominated in a foreign currency, movements in the exchange rate can effectively increase or decrease the economic cost of financing, and this interaction needs to be carefully reviewed during the tax adjustment process rather than left to default accounting figures.

Reconciling the Two Treatments in Practice

For most UAE businesses, the practical starting point for Corporate Tax computation is the audited financial statements, with exchange gains and losses already embedded in the reported accounting profit. The tax adjustment process therefore involves identifying every foreign exchange gain or loss booked during the period, classifying the underlying asset or liability as capital or revenue in nature, confirming whether a realization basis election has been made, and then determining whether any participation exemption applies. Businesses that fail to maintain this level of granularity in their foreign exchange ledgers often find themselves unable to substantiate adjustments to the FTA during a tax audit, which is why clean, transaction-level foreign currency records are now a genuine compliance necessity rather than a bookkeeping nicety.

It is equally important to note that once a realization basis election is made for capital assets and liabilities, it generally applies consistently across future periods and cannot be selectively reversed, so businesses should model the long-term impact carefully before making the choice, ideally with professional guidance, since reversing an election later can be restrictive under the applicable Ministerial Decisions.

How My Taxman Can Help

Navigating the gap between IFRS-based accounting profit and UAE Corporate Tax taxable income is one of the more technical areas of compliance, and foreign exchange treatment sits right at the center of it. My Taxman works with UAE businesses to review foreign currency exposures, classify monetary assets and liabilities correctly between capital and revenue account, evaluate whether a realization basis election makes sense for a given business model, and ensure that participation exemption claims on foreign exchange movements are properly documented and defensible. Whether a business is a trading company with regular foreign currency invoices, a holding structure with overseas investments, or a group with intercompany foreign currency loans, My Taxman’s advisory team helps translate complex Corporate Tax provisions into practical, audit-ready adjustments, so that businesses stay compliant while legitimately optimizing their tax position under UAE law.